CN202788879U - Plunger-suspension-type mining single hydraulic prop - Google Patents
Plunger-suspension-type mining single hydraulic prop Download PDFInfo
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- CN202788879U CN202788879U CN201220459588.3U CN201220459588U CN202788879U CN 202788879 U CN202788879 U CN 202788879U CN 201220459588 U CN201220459588 U CN 201220459588U CN 202788879 U CN202788879 U CN 202788879U
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Abstract
The utility model discloses a plunger-suspension-type mining single hydraulic prop, belonging to the field of mining machinery. The mining single hydraulic prop structurally and mainly comprises a top cap assembly, a sealing cap, an elastic pin, a movable column, a reset spring, a handle valve body, an oil cylinder, a base body and a three-use valve, wherein the sealing cap is arranged in the movable column which is arranged in the oil cylinder; the handle valve body is internally provided with the three-use valve; a dustproof ring, a Y-shaped sealing ring, a connecting steel wire and a liquid-inlet through hole are arranged between the handle valve body and the movable column and between the handle valve body and the oil cylinder, and the liquid-inlet through hole is communicated with the oil cylinder and the three-use valve; a check ring, an O-shaped ring and a connecting steel wire are arranged between the base body and the oil cylinder, the check ring and the O-shaped ring are arranged below the sealing cap in the movable column, and the connecting steel wire and a movable column guide sleeve are arranged on the outer cylinder of the movable column; and a handle body guide sleeve is arranged between the handle valve body and the movable column which are matched with each other. The plunger-suspension-type mining single hydraulic prop has the advantages of being not easily blocked, low in cost, permanent in anticorrosion and antirust performances, high in mechanical strength, free from maintenance and the like.
Description
Technical field
The utility model relates to a kind of High Strength Hydraulic pillar of using for the supporting of down-hole coal excavation face roof, relates in particular to a kind of mining single hydraulic supporting column with suspension type plunger.
Background technology
The pillar of down-hole mining work plane is one of requisite equipment on the ore deposit, the support apparatus of China's upper use in ore deposit has the various structures forms such as wooden prop, elemental metals friction prop, hydraulic prop and two telescopic suspension supporting columns, in recent years, along with the continuous developmental research of engineers and technicians and practice, support technology has a great development, and progressively be tending towards perfect, wooden prop seldom uses, the elemental metals friction prop is little and inhomogeneous because of its setting load, and perseverance increases that resistance is fallen apart from also guaranteeing and need not; Hydraulic prop is the new generation product of development after the elemental metals friction prop, applied at present more than 30 years, hydraulic prop is provided with triple-use valve, pressure liquid injection pillar oil cylinder by the triple-use valve emulsion station supply that work plane is default carries out just support, when top board is pressed and unload, by triple-use valve emulsion is gushed, pillar descends, during repeated work, the pressure liquid with the emulsion station carries out just support, successively circulation again.
Hydraulic prop is used for the place of the face roof supporting such as colliery down-hole coal excavation, constructing tunnel and heading end supporting, its main material is that the alloys such as iron, steel form by mode manufacturings such as forgings, because of water level acidity under the mine, equipment is long-term to be used in the environment such as dark, moist, easily make the stanchions face produce electrochemical corrosion, cause oxidation, thereby make the corrosion of part-structure or overall structure, therefore need regularly pillar to be carried out preservative treatment, not only increase manpower, also wasted a large amount of time and moneys.
Existing hydraulic prop is made of base, oil cylinder, live cylinder, piston, top cover, triple-use valve, seal etc.The O RunddichtringO of present individual hydraulic prop piston is the forward type sealing, be provided with respectively φ 80H9 outside upper of piston body, two steps of φ 82H10, be respectively arranged with O RunddichtringO fitting recess and O type clamping ring fitting recess at two steps, O RunddichtringO fitting recess is near the piston body front end, the bottom also is respectively arranged with two steps in the cylinder of living, and corresponding with two steps on the outer top of piston body, in the assembling process of piston and the cylinder of living, because the impact of step, piston is by O type clamping ring fitting recess the time, make sometimes the O RunddichtringO that is enclosed within on the piston damage of damaging, in the use procedure of down-hole, cause the pillar leakage, equipment is let out and is carried, and affects the safety of the pillar of coal-face.
To sum up, existing hydraulic prop uses to the ore deposit work of adopting and brings great convenience, but still exists following problem: 1) be provided with the circular arc weld seam at the post of living, caused the reduction of post height alive, when roof weighting, the phenomenons such as brittle failure, crackle appear in weld seam easily, thereby have potential safety hazard.2) because oil cylinder inner surface is high pressure sealing face, so after the wearing and tearing, pillar is produced leak, bring hidden danger to the miner, pillar is scrapped, the learies of annual pillar reaches 300,000, causes great waste.The China's coal-mine most generally uses hydraulic prop, and according to incompletely statistics, the demand of hydraulic prop is annual to surpass 3,000,000, therefore, the further Improvement and perfection of individual prop equipment is had important practical significance.
Summary of the invention
In order to solve deficiency of the prior art, the utility model provides a kind of mining single hydraulic supporting column with suspension type plunger, have and be difficult for stuck, low-cost, permanent anticorrosion, antirust function, high mechanical properties, solderless contact, non-maintaining can not cause to environment the advantages such as any pollution in production and use procedure.
The utility model is to realize by following technical scheme:
Mining single hydraulic supporting column with suspension type plunger, its structure is mainly by cap assembly, seal cover, resilient key, post alive, back-moving spring, the handgrip fairlead, handle valve body, oil cylinder, post fairlead alive, base body, the formations such as triple-use valve, wherein in the post alive seal cover is set, the post of living is arranged in the oil cylinder, handle valve body is arranged at cylinder ports and the intercolumniation of living, seal cover is connected with back-moving spring, be provided with triple-use valve in the handle valve body, handle valve body and the post of living, be provided with dust ring between oil cylinder, y-type seal ring be connected steel wire, and be provided with the feed liquor through hole that is communicated with oil cylinder and triple-use valve, be provided with back-up ring and O type circle between base body and oil cylinder, connect steel wire, the seal cover below that is located in the post alive is provided with back-up ring and O type circle, the outside cylinder of post alive is provided with and connects steel wire and the post fairlead of living, handle valve body be provided with the handle body fairlead between the post of living cooperates, the clearance control that oil cylinder cooperates with the post fairlead of living is at 0.15-0.20mm, oil cylinder is inner, the post of living all adopts the compound alloy pipe that forms of stainless steel, reaches permanent etch-proof effect.
Described seal cover, the one side sets and is equipped with the hole with the post of living, cap assembly, is provided with resilient key in the hole.
Described post alive, the one end is set in the oil cylinder, and it is outer and pass handle valve body with cap assembly links that the other end stretches out oil cylinder, and the external surface of work post is coated with coating, post alive and seal cover, live post and handle valve body, the clearance control of cooperation is between 0.06-0.10mm.
Described handle valve body, it is connected with oil cylinder by connecting steel wire, post alive connects, and be provided with dust ring, y-type seal ring between the cooperating of the post of living, with be provided with back-up ring and O type circle between the cooperating of oil cylinder, handle valve body and oil cylinder, oil cylinder and base body fitting face, the clearance control of cooperation is between 0.06-0.10mm.
Described valve seat, it is welded on the post alive, plays the effect that triple-use valve is installed.
Described triple-use valve, it is installed in the valve seat, and valve opening is communicated with the post inner chamber of living, and plays the effect of fluid injection and unloading.
Described back-moving spring is arranged on the inside of post alive, and the one end links to each other with base body, and the other end links to each other with the lower surface of cap assembly, the effect that can make post alive retract and reset.
Described cap assembly, its underpart is provided with seal cover, and is provided with back-up ring and O type circle between the inwall of seal cover and the post of living.
The utility model mining single hydraulic supporting column with suspension type plunger, wherein live post and cap assembly, seal cover fitting face, oil cylinder and base body, handle valve body fitting face are coated with mineral lubricating oil calcium-base grease ZG-3 number (GB491-65) and are lubricated with antirust; The spraying ore deposit, position that connects steel wire has antirust screw grease antirust, and opening part is obturaged with sealing wax or oil loam.When back-moving spring is installed the 10-15KN pretightning force need be arranged.Post alive and seal cover, live post and handle valve body, oil cylinder and handle valve body, oil cylinder and base body fitting face, the clearance control of cooperation is between 0.06-0.10mm.The clearance control that oil cylinder cooperates with the post guide pin bushing of living is between 0.15-0.20mm, and the utility model is carried out MT112.1-2006 " mine individual hydraulic prop " standard.
Owing to adopted above technical scheme, the utlity model has following beneficial effect and be:
(1), greatly improve anticorrosive property, anti-aging and abrasion resistance, produced and used more environmental protection, pollution-free.
(2), and wearing and tearing that easily produce when having reduced motion between post alive and cylinder post and oil cylinder, the phenomenon of effectively having avoided post alive to be stuck have been guaranteed the intensity of post alive also to have alleviated the weight of pillar.
(3) cost low, the triple-use valve hole is in the side, pillar stressed rear on the triple-use valve hole without impact, favorable sealing property.
4), workman's handling safety, convenience, non-maintaining, alleviated workman's labour intensity, compact conformation is reasonable, stability is high, convenient disassembly, the advantages such as long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-cap assembly, 2-back-up ring and O type circle are connected live post, 6-back-moving spring, 7-dust ring, 8-Y RunddichtringO, 9-handle body fairlead, 10-of 3-seal cover, 4-resilient key, 5-and are connected steel wire, 11-oil cylinder, 12-live post fairlead, 13-base body, 14-triple-use valve, 15-handle valve body.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present utility model is described further:
As shown in Figure 1, mining single hydraulic supporting column with suspension type plunger, structure is mainly by cap assembly 1, seal cover 3, resilient key 4, post 5 alive, back-moving spring 6, handgrip fairlead 9, handle valve body 15, oil cylinder 11, post fairlead 12 alive, base body 13, triple-use valve 14 formations such as grade, the post 5 interior seal covers 3 that arrange of wherein living, the post 5 of living is arranged in the oil cylinder 11, handle valve body 15 is arranged at 11 mouthfuls of oil cylinders and 5 on the post of living, seal cover 3 is connected with back-moving spring 6, be provided with triple-use valve 14 in the handle valve body 15, handle valve body 15 and the post 5 of living, 11 of oil cylinders are provided with dust ring 7, y-type seal ring 8 be connected steel wire 10, and be provided with the feed liquor through hole that is communicated with oil cylinder 11 and triple-use valve 14,11 of base body 13 and oil cylinders are provided with back-up ring and O type circle 2, connect steel wire 10, seal cover 3 belows that are located in the post 5 alive are provided with back-up ring and O type circle 2, the outside cylinder of post 5 alive is provided with and connects steel wire 10 and the post fairlead 12 of living, handle valve body 15 be provided with handle body fairlead 9 between the post 5 of living cooperates, the clearance control that oil cylinder 11 cooperates with the post fairlead 12 of living is at 0.15-0.20mm, oil cylinder 11 inside, the post 5 of living all adopts the compound alloy pipe that forms of stainless steel, reaches permanent etch-proof effect.
Described seal cover 3, the one side sets and is equipped with the hole with the post 5 of living, cap assembly 1, is provided with resilient key 4 in the hole.
Described post alive 5, the one end is set in the oil cylinder 11, and the other end stretches out outside the oil cylinder 11 and passes handle valve body 15 and links with cap assembly 1, and the external surface of the post 5 of living is coated with coating, post 5 alive and seal cover 3, live post 5 and handle valve body 15, the clearance control of cooperation is between 0.06-0.10mm.
Described handle valve body 15, it is connected with oil cylinder 11 by connecting steel wire 10, post alive 5 connects, and be provided with dust ring 7, y-type seal ring 8 between the cooperating of the post 5 of living, with be provided with back-up ring and O type circle 2 between the cooperating of oil cylinder 11, handle valve body 15 and oil cylinder 11, oil cylinder 11 and base body 13 fitting faces, the clearance control of cooperation is between 0.06-0.10mm.
Described valve seat, it is welded on the post 5 alive, plays the effect that triple-use valve 14 is installed.
Described triple-use valve 14, it is installed in the valve seat, and valve opening is communicated with post 5 inner chambers of living, and plays the effect of fluid injection and unloading.
Described back-moving spring 6 is arranged on the inside of post 5 alive, and the one end links to each other with base body 13, and the other end links to each other with the lower surface of cap assembly 1, the effect that can make post 5 alive retract and reset.
Described cap assembly 1, its underpart is provided with seal cover 3, and is provided with back-up ring and O type circle 2 between the inwall of seal cover 3 and the post 5 of living.
The utility model mining single hydraulic supporting column with suspension type plunger, wherein live post 5 and cap assembly 1, seal cover 3 fitting faces, oil cylinder 11 and base body 13, handle valve body 15 fitting faces are coated with mineral lubricating oil calcium-base grease ZG-3 number (GB491-65) and are lubricated with antirust; The spraying ore deposit, position that connects steel wire 10 has antirust screw grease antirust, and opening part is obturaged with sealing wax or oil loam.When back-moving spring 6 is installed the 10-15KN pretightning force need be arranged.Post 5 alive and seal cover 3, live post 5 and handle valve body 15, oil cylinder 11 and handle valve body 15, oil cylinder 11 and base body 13 fitting faces, the clearance control of cooperation is between 0.06-0.10mm.The clearance control that oil cylinder 11 cooperates with the post guide pin bushing 12 of living is between 0.15-0.20mm, and the utility model is carried out MT112.1-2006 " mine individual hydraulic prop " standard.
It should be noted that at last: above manual is only in order to illustrate the technical solution of the utility model and use characteristic, although this manual has been described in detail the utility model with reference to the above embodiments, but, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (8)
1. mining single hydraulic supporting column with suspension type plunger, its structure is mainly by cap assembly (1), seal cover (3), resilient key (4), post (5) alive, back-moving spring (6), handgrip fairlead (9), handle valve body (15), oil cylinder (11), post fairlead (12) alive, base body (13), triple-use valve (14) consists of, it is characterized in that: be provided with seal cover (3) in the post (5) of wherein living, the post (5) of living is arranged in the oil cylinder (11), handle valve body (15) is arranged at oil cylinder (11) mouth and lives between post (5), seal cover (3) is connected with back-moving spring (6), be provided with triple-use valve (14) in the handle valve body (15), handle valve body (15) and the post (5) of living, be provided with dust ring (7) between oil cylinder (11), y-type seal ring (8) be connected steel wire (10), and be provided with the feed liquor through hole that is communicated with oil cylinder (11) and triple-use valve (14), be provided with back-up ring and O type circle (2) between base body (13) and oil cylinder (11), connect steel wire (10), interior seal cover (3) below of the post (5) of living is provided with back-up ring and O type circle (2), the outside cylinder of post alive (5) is provided with and connects steel wire (10) and the post fairlead (12) of living, handle valve body (15) be provided with handle body fairlead (9) between the post (5) of living cooperates, the clearance control that oil cylinder (11) cooperates with work post fairlead (12) is at 0.15-0.20mm.
2. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1 is characterized in that: described seal cover (3), the one side sets and is equipped with the hole with the post (5) of living, cap assembly (1), is provided with resilient key (4) in the hole.
3. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1, it is characterized in that: described post alive (5), the one end is set in the oil cylinder (11), the other end stretches out outside the oil cylinder (11) and passes handle valve body (15) and links with cap assembly (1), and the external surface of the post (5) of living is coated with coating, post alive (5) and seal cover (3), live post (5) and handle valve body (15), the clearance control of cooperation is between 0.06-0.10mm.
4. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1, it is characterized in that: described handle valve body (15), it is connected with oil cylinder (11) by connecting steel wire (10), post alive (5) connects, and be provided with dust ring (7), y-type seal ring (8) between the cooperating of the post (5) of living, with be provided with back-up ring and O type circle (2) between the cooperating of oil cylinder (11), handle valve body (15) and oil cylinder (11), oil cylinder (11) and base body (13) fitting face, the clearance control of cooperation is between 0.06-0.10mm.
5. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1, it is characterized in that: described valve seat, it is welded on the post alive (5).
6. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1 is characterized in that: described triple-use valve (14), and it is installed in the valve seat, and valve opening is communicated with post (5) inner chamber of living.
7. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1, it is characterized in that: described back-moving spring (6), be arranged on the inside of post alive (5), the one end links to each other with base body (13), and the other end links to each other with the lower surface of cap assembly (1).
8. mining single hydraulic supporting column with suspension type plunger as claimed in claim 1, it is characterized in that: described cap assembly (1), its underpart are provided with seal cover (3), and are provided with back-up ring and O type circle (2) between the inwall of seal cover (3) and the post (5) of living.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220459588.3U CN202788879U (en) | 2012-09-11 | 2012-09-11 | Plunger-suspension-type mining single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220459588.3U CN202788879U (en) | 2012-09-11 | 2012-09-11 | Plunger-suspension-type mining single hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788879U true CN202788879U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220459588.3U Expired - Lifetime CN202788879U (en) | 2012-09-11 | 2012-09-11 | Plunger-suspension-type mining single hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075483A (en) * | 2019-12-10 | 2020-04-28 | 邢培培 | Mining suspension monomer hydraulic means |
-
2012
- 2012-09-11 CN CN201220459588.3U patent/CN202788879U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075483A (en) * | 2019-12-10 | 2020-04-28 | 邢培培 | Mining suspension monomer hydraulic means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170323 Address after: 031400 Huozhou, Linfen Gulou Street South Gulou garden building, room 19, Room 601, No. Patentee after: SHANXI JIUDING WEIYE ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: Jiading District Cao Road, Shanghai No. 4560 Building 1 201804 Patentee before: SHANGHAI PIT MACHINERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |